1 files changed, 4 insertions, 0 deletions
diff --git a/backend/x11/backend.c b/backend/x11/backend.c
index f6f9cfa8..0d0eaa5b 100644
--- a/backend/x11/backend.c
+++ b/backend/x11/backend.c
@@ -401,3 +401,7 @@ static struct wlr_output_impl output_impl = {
 	.make_current = output_make_current,
 	.swap_buffers = output_swap_buffers,
 };
+
+bool wlr_output_is_x11(struct wlr_output *wlr_output) {
+	return wlr_output->impl == &output_impl;
+}